How much stronger is OP Flurry than regular Flurry?

Hi there,

I don't have any real intentions to push high into the Pit, but would like to have a build that can comfortably carry T4 bossruns. On regular Flurry I can't really do that, the boss damage is just not there (I can solo bosses, but not with others being carried).

Is the OP version significantly stronger on bosses? Does it lose on speedfarm potential? Flurry is a blast to play generally, and I'm wondering if Overpower would be a good version to explore.